.dropdwon .dd {
    display: none;
}

.header .sk {
    position: absolute;
    top: 40px;
    left: 190px;
}

.sk_list ul li {
    float: left;
}

.sk_list ul li a {
    display: block;
    padding: 0 30px;
    height: 45px;
    line-height: 45px;
    font-size: 16px;
    color: #000;
    font-weight: bold;

}

.sk_con ul li {
    float: left;
}

.sk_con ul {
    overflow: hidden;
}

.sk_con ul li a {
    display: block;
    padding: 0 20px;
    height: 45px;
    line-height: 46px;
    font-size: 14px;
}

.sk_con ul li:last-child a::after {
    content: '\e91e';
    font-family: 'icomoon';
}

.sk_bd ul {
    margin-top: 25px;
}

.sk_bd ul li {
    overflow: hidden;
    float: left;
    width: 290px;
    height: 458px;
    margin-bottom: 12px;
    margin-right: 13px;
    border: 1px solid transparent;
}
.sk_bd ul li:hover {
    border: 1px solid #e12228;
}

.sk_bd ul li a {
    display: block;
}

.sk_bd ul li:nth-child(4n) {
    margin-right: 0;
}